False twister



Dec. 9, 1952 o. w, sc u s 2,620,517

FALSE TWISTER Filed June 2, 1950 INVENTOR OTTO W. SCHLUMS Patented Dec.9, 1952 FALSE TWISTER Otto W. Schlums, Whitinsville, Mass, assignor toWhitin Machine Works, 'Whitinsville, Mass-., a a corporation ofMassachusetts Application June 2, 1950, Serial No. 165,721

'7 Claims.

This invention relates to false twisters or condensers of the kind inwhich a sliver is caused to pass between a pair of opposed discs havingtheir proximate faces disposed in converging planes and arranged to berotated in opposite directions. The basic principle of operation is veryold, a condenser of this type being shown, for example, in Patent No.143,020, dated September 23, 1873.

The object of the invention is to provide a false twister or condenserof that type which is embodied in a simple, compact unit and soorganized that the discs are more readily driven, as from conventionalrolls or the like, whereby the device is readily adaptable to the needsof the system to which it is applied.

The invention will be readily understood from the following descriptionand accompanying drawings of a preferred form. In the drawings:

Fig. 1 is a side elevation of the preferred form of the invention shownin relation to a pair of driving rolls; and

Fig. 2 is a plan view of the same.

In this preferred form, the body of the unit consists of a suitablemounting bracket l shown as recessed at 2 to fit what may be assumed tobe a traverse bar 3 to which the unit may be secured, as by clamp 4 andbolt 5.

Upstanding from the bracket and pivoted to it on a common horizontalaxis 6 are two arms I, 8 which are located between two bracket lugs, ofwhich the one on the near side is marked 9 in Fig. 1. The face l of thebracket between these lugs serves as a stop to limit the movement(counter-clockwise as viewed in Fig. 1) of the arms land 8 about theirpivots, the arms being biased in such counterclockwise direction byidentical springs, of which the one on the near side is marked II inFig. l.

Projecting forwardly from the upper ends of the arms 1, 8 are extensionsI3, 14 which incorporate journal supports for the condenser discs l5,Hi.

In common with condensers of this twin-disc type, the discs 15, I 6 aremounted with their proximate faces disposed in substantially verticalconverging planes. However, their journal supports, and hence theiraxes, are vertically offset. Also, the peripheries of the discs areoppositely coned, so that portions of the peripheries are substantiallyparallel or lie in a common tangent plane. In this instance, the discsare coned in directions such that their proximate faces are of greaterdiameter than their remote faces; and, as indicated, the peripheries ofthe 2 discs are knurled or otherwise roughened. 3 this means the falsetwister is readily-adapted to be driven by the direct engagement ofsuitable drivers with the peripheries of therespective discs.

As shown, the device may be mounted adjacent a pair of upper andlowerdriven rolls H, I 8, whose axes are in the same or substantiallythe same vertical plane and whose peripheries engage, respectively, theupper and lower discs.

By positioning the unit close enough to the rolls to force the arms 7, 8back somewhat from their limit position, the discs are maintained inclose engagement with their driving rolls by their respective springs.Both the driving and traversing of the device are thus greatlysimplified.

As indicated, the proximate faces or the marginal portions I 9, 20 ofthe proximate faces of the discs are grooved or otherwise surfaced toenable the oppositely rotating discs to impart the conventionalfalse-twisting action to a strand or sliver as it passes between them.

In the light of the foregoing illustrative description of what will beunderstood to be no more than the preferred form of the invention, thefollowing is claimed:

1. A false twister comprising in combination: a mounting bracket; a pairof arms pivotally mounted on the bracket; stop means carried by thebracket; springs urging said arms toward engagement with the stop means;vertically offset journal supports carried by the respective arms; andopposed disc members mounted one on each of the journal supports andwith their proximate faces arranged in substantially vertical convergingplanes, the peripheries of the said discs being oppositely coned,whereby predetermined portions of the peripheries of the discs have acommon tangent plane.

2. A false twister comprising in combination: a mounting bracket; a pairof arms pivotally mounted on the bracket; stop means carried by thebracket; springs urging said arms toward engagement with the stop means;vertically offset journal supports carried by the respective arms; andopposed disc members mounted one on each of the journal supports andwith their proximate faces arranged in substantially vertical convergingplanes.

3. A false twister comprising the combination with a pair of opposeddisc members having their proximate faces arranged in substantiallyvertical converging planes, of vertically offset journal supports forthe said discs, the peripheries of the said discs being oppositelyconed, whereby predetermined portions of the peripheries of the discshave a common tangent plane, and bracket means supporting the journalsupports with freedom for relative movement toward and from said commontangent plane.

4. A false twister comprising a bracket; a pair of supports mounted onthe bracket on a common horizontal pivot axis; vertically offset journalmeans carried by each of said supports; and two opposed disc membersmounted one on each of the journal means and with their proximate facesarranged in substantially vertical converging planes.

5. A false twister comprising a bracket; a pair of supports mounted onthe bracket with freedom for relative horizontal movement insubstantially parallel vertical planes; vertically offset journal meanscarried by said supports; and two opposed disc members mounted one oneach of the journal means and with their proximate faces arranged .insubstantially vertical converging planes.

.6. .A false twister comprising the combination of a pair of opposeddisc members overlapped nfiset means rotatably supporting the saiddiscs,

the peripheries of the said proximate faces of the discs beingoppositely coned, whereby predetermined portions of the peripheries ofthe discs have a common tangent plane.

7. A false twister comprising the combination of a pair of opposed discmembers overlapped throughout the major part of their proximate facesand with such faces arranged in substantially vertical convergingplanes, and vertically ofiset means rotatably supporting the said discs.

' OTTO W. SCI-ILUMS.

REFERENCES CITED The following references are of record in the file :orthis patent:

UNITED STATES PATENTS "Number Name Date 143,020 Lucas Sept. 23, 1873745,625 Jerrerns Dec. 1, 1903 2,522,332 Abbott Sept. 12,, 1950"2,523,338 "Snider Sept. 26, 1950 FQREIGN PATENTS Number Country v Date324,540 GreatBritain Jan. 30, '198-0

